Car enthusiasts from around the world send their cars to German-born Hartmut Feyhl in Florida who modifies the engines, brakes and suspension for extreme performance. He is the owner and founder of RENNtech, one of the world's most respected automobile-performance companies.
Feyhl's high-performance cars have been featured on the covers of leading automotive magazines, including Car and Driver, eMercedesBenz, Motor Trend, AutoWeek, Modified Luxury & Exotics and others. Modified Luxury & Exotics described RENNtech as, "one of the foremost Mercedes-Benz tuners in the world."
Hartmut spent 12 years at AMG Germany, a performance-engineering firm, then was North American Technical Director for AMG before it became a part of Mercedes-Benz. He left AMG to launch RENNtech.